Lucas is suing Enzo for negligence arising out of a moped accident where both Lucas and Enzo were driving mopeds and collided at an intersection. What are the elements that Lucas must prove in order to win his case? Explain one defense Enzo may use to prevent Lucas from recovering, or to at least lessen Lucas's recovery? What impact would the failure of Lucas or Enzo to possess a required moped license make in the outcome of the case? Discuss.